html,
body,
#app {
    margin: 0px;
    padding: 0px;
    height: 100%;
}

/* transition */
.fade-transition-enter-active,
.fade-transition-leave-active {
    transition: opacity 0.2s ease-in-out;
}

.fade-transition-enter-from,
.fade-transition-leave-to {
    opacity: 0;
}

.fade-enter-active,
.fade-leave-active {
    transition: opacity 0.2s ease-in-out;
}

.fade-enter-from,
.fade-leave-to {
    opacity: 0;
}

/* fade-slide */
.fade-slide-leave-active,
.fade-slide-enter-active {
    transition: all 0.3s;
}

.fade-slide-enter-from {
    opacity: 0;
    transform: translateX(-30px);
}

.fade-slide-leave-to {
    opacity: 0;
    transform: translateX(30px);
}